Definitely cop as I found the month Sep written that way (whereas all other p's up 'til then were written with the "normal" open loop).
Still not sure on the black one though, only 1 in the list (circled) looks like an "l" to me.
Do you think in this attachment they look any different? What about March on the left, Mch or Mrh? I reckon it's a c which looks like the others & not an r when you look at Br.